CN220471581U - Waste heat recovery's steam generator - Google Patents
Waste heat recovery's steam generator Download PDFInfo
- Publication number
- CN220471581U CN220471581U CN202321153520.7U CN202321153520U CN220471581U CN 220471581 U CN220471581 U CN 220471581U CN 202321153520 U CN202321153520 U CN 202321153520U CN 220471581 U CN220471581 U CN 220471581U
- Authority
- CN
- China
- Prior art keywords
- heat recovery
- waste heat
- flue gas
- heat exchange
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000011084 recovery Methods 0.000 title claims abstract description 41
- 239000002918 waste heat Substances 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000003546 flue gas Substances 0.000 claims abstract description 45
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims description 21
- 239000010902 straw Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a waste heat recovery steam generator, and relates to the technical field of steam generators. Including bottom casing, top cap, combustor and steam exit tube, the bottom of bottom casing is fixed with the connecting plate, is formed with the water cavity between connecting plate and the bottom casing diapire, and the top of bottom casing is fixed with the baffle, and the top of baffle is formed with steam and gathers the chamber, and the bottom of baffle is formed with the heat transfer chamber, and the combustion head of combustor is located the top of heat transfer chamber, and the connecting plate top is fixed with a plurality of heat exchange tubes, and the bottom of heat exchange tube is linked together with the water cavity, and the baffle is extended at the top of heat exchange tube, is provided with circulating assembly between steam and the water cavity, and water cavity one side fixed intercommunication has the inlet tube. The utility model is provided with the waste heat recovery device, effectively increases the moving distance of the cold water and the high-temperature flue gas in the waste heat recovery box body, increases the contact area between the cold water and the high-temperature flue gas, and further effectively improves the heat exchange efficiency.
Description
Technical Field
The utility model relates to the technical field of steam generators, in particular to a waste heat recovery steam generator.
Background
The structure that current steam generating equipment is comparatively commonly used is, utilizes combustor (fire row formula) burning, and the heat exchanger carries out heat transfer in the combustor top, and the flue gas rises and discharges after the condenser cooling. Because the rising speed of the flue gas is higher, the structure not only ensures that the overall device structure is larger, but also ensures that the heat exchange efficiency of the flue gas and the heat exchanger is not high. For this reason, modification of existing steam generating equipment is required.
Disclosure of Invention
The utility model aims to provide a waste heat recovery steam generator for solving the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a waste heat recovery's steam generator, includes bottom casing, top cap, combustor and steam exit tube, the bottom of bottom casing is fixed with the connecting plate, be formed with the water cavity between connecting plate and the bottom casing diapire, the top of bottom casing is fixed with the baffle, the top of baffle is formed with steam collection chamber, the bottom of baffle is formed with the heat transfer chamber, the combustion head of combustor is located the top of heat transfer chamber, the connecting plate top is fixed with a plurality of heat exchange tubes, the bottom of heat exchange tube is linked together with the water cavity, the baffle extends at the top of heat exchange tube, be provided with circulating assembly between steam collection chamber and the water cavity, the fixed intercommunication in water cavity one side has the inlet tube, be connected with waste heat recovery device on the body of inlet tube.
Preferably, the heat exchange tubes are arranged in a plurality, and are distributed in an annular mode relative to the central axis of the burner head.
Preferably, the circulation assembly comprises a circulation pipe and a first water pump;
two ends of the circulating pipe are respectively communicated with the steam collecting cavity and the water cavity, and the first water pump is connected with the pipe body of the circulating pipe.
Preferably, the waste heat recovery device comprises a waste heat recovery box body, a plurality of guide plates, a smoke suction pipe, a smoke outlet pipe and an air pump, wherein the guide plates are fixed with the side wall of the waste heat recovery box body;
the adjacent guide plates are distributed in a staggered way, and water circulation through grooves are formed between the end surfaces of the opposite sides of the adjacent guide plates and the waste heat recovery box body;
a heat exchange component is arranged between the smoke suction pipe and the smoke outlet pipe;
the air pump is connected with the pipe body of the flue gas outlet pipe.
Preferably, the heat exchange assembly comprises a plurality of flue gas flowing boxes and connecting pipes, wherein the flue gas flowing boxes and the connecting pipes are fixed with the side walls of the waste heat recovery box body;
the smoke flow box at the top is fixedly communicated with the smoke suction pipe, and the smoke flow box at the bottom is fixedly communicated with the smoke outlet pipe;
the connecting pipes are fixedly communicated between two adjacent flue gas flowing boxes in a staggered mode.
Preferably, the flue gas straw is L-shaped, the top tube body of the flue gas straw is positioned at the top of the heat exchange cavity, and the top end face of the flue gas straw is parallel to the bottom end of the partition plate.
Compared with the prior art, the utility model has the beneficial effects that:
the waste heat recovery steam generator has compact structure and small occupied area, is convenient to install through integrated arrangement, and adopts a vertical through-flow structural design, so that the steam generator has small capacity and high steam production speed, and the operation efficiency is improved;
in addition, this generator is provided with waste heat recovery device, has effectually increased the travel distance of cold water and high temperature flue gas in waste heat recovery box, has increased the area of contact between cold water and the high temperature flue gas, and then effectually improved heat exchange efficiency, improved resource utilization.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a semi-sectional view of the present utility model;
FIG. 3 is a semi-sectional view of the waste heat recovery tank of the present utility model.
In the figure: 101. a bottom housing; 102. a top cover; 103. a steam outlet pipe; 104. a burner; 2. a partition plate; 201. a steam collection chamber; 3. a heat exchange tube; 401. a circulation pipe; 402. a first water pump; 5. a waste heat recovery device; 6. a water inlet pipe; 7. a deflector; 701. a through groove; 801. a flue gas flow box; 802. a connecting pipe; 901. a smoke suction pipe; 902. and a flue gas outlet pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order to solve the technical problems that in the prior art, the overall device structure of the steam generator is large and the heat exchange efficiency of the flue gas and the heat exchanger is low, the utility model provides a technical scheme that: waste heat recovery's steam generator
As shown in fig. 1-3, the device includes a bottom casing 101, a top cover 102, a burner 104, and a steam outlet pipe 103, where a pressure release pipe and a pressure release valve for releasing pressure are further provided at the top of the top cover 102, which are in the prior art and are not described in detail in this scheme.
As shown in fig. 2, a connecting plate is fixed at the bottom of the bottom casing 101, such that a water cavity is formed between the connecting plate and the bottom wall of the bottom casing 101, a partition plate 2 is fixed at the top of the bottom casing 101, and the cavity formed by the bottom casing 101 and the top cover 102 is divided into a steam collecting cavity 201 and a heat exchanging cavity by the partition plate 2, and it can be known that the combustion head of the burner 104 is located at the top of the heat exchanging cavity, the outer side of the burner 104 is separated from the steam collecting cavity 201 by a sleeve, and a plurality of heat exchanging pipes 3 are fixed at the top end of the connecting plate.
It should be understood that the bottom of the heat exchange tube 3 is communicated with the water cavity, the top of the heat exchange tube 3 extends out of the partition plate 2, a circulation assembly is arranged between the steam collecting cavity 201 and the water cavity, the circulation assembly is used for pumping water in the steam collecting cavity 201 into the water cavity for heat exchange again, the water cavity is fixedly communicated with the water inlet tube 6, and the pipe body of the water inlet tube 6 is connected with the waste heat recovery device 5 for heating water entering the water cavity from the water inlet tube 6.
In order to improve the steam generation efficiency, in this embodiment, it is known that the heat exchange tubes 3 are provided in a plurality of numbers and are annularly distributed with respect to the central axis of the burner 104.
To exchange heat again the water flowing out of the heat exchange tube 3, as shown in fig. 2, the circulation assembly includes a circulation tube 401 and a first water pump 402;
wherein, both ends of the circulation pipe 401 are respectively communicated with the steam collecting chamber 201 and the water chamber, and the first water pump 402 is connected with the pipe body of the circulation pipe 401.
The steam emitted through the heat exchange tube 3 is discharged through the steam outlet tube 103.
As shown in fig. 2 and 3, it should be understood that the waste heat recovery device 5 includes a waste heat recovery box, a plurality of guide plates 7, a flue gas suction pipe 901, a flue gas outlet pipe 902 and an air pump, the air pump is connected with the pipe body of the flue gas outlet pipe 902 to improve the power for the flow of the flue gas, the flue gas flowing out of the flue gas outlet pipe 902 is purified by a flue gas purification device and then discharged into the atmosphere, and the guide plates 7 are fixed with the side wall of the waste heat recovery box;
wherein, flue gas straw 901 is L type, and its top body is located the top of heat transfer chamber to its top terminal surface is parallel with the bottom of baffle 2, and the flue gas rises under the atmospheric pressure effect, and the design of L type is to prevent that flue gas straw 901 will not carry out the direct suction of the high temperature flue gas of abundant heat transfer with heat transfer pipe 3.
As shown in fig. 3, it should be understood that the adjacent guide plates 7 are staggered, and water through grooves 701 are formed between the end surfaces of the opposite sides of the adjacent guide plates 7 and the waste heat recovery box;
therefore, cold water can flow between the guide plates 7 which are transversely distributed, the overall flow area of the water is increased, the water can fully exchange heat with high-temperature flue gas, the heat exchange efficiency is improved, and resources are saved.
In order to increase the flowing time of the flue gas in the waste heat recovery box body, the high-temperature flue gas and cold water are enabled to exchange heat fully, the heat exchange efficiency is improved, and a heat exchange assembly is arranged between a flue gas suction pipe 901 and a flue gas outlet pipe 902 as shown in fig. 3;
the heat exchange assembly comprises a plurality of flue gas flowing boxes 801 and connecting pipes 802, wherein the flue gas flowing boxes 801 and the connecting pipes 802 are fixed with the side walls of the waste heat recovery box body;
the smoke flow box 801 at the top is fixedly communicated with the smoke suction pipe 901, and the smoke flow box 801 at the bottom is fixedly communicated with the smoke outlet pipe 902;
the connecting pipes 802 are fixedly connected between two adjacent flue gas flow boxes 801 in a staggered manner, and the flue gas flow boxes 801 are communicated.
In conclusion, the generator is provided with the waste heat recovery device 5, so that the moving distance of cold water and high-temperature flue gas in the waste heat recovery box body is effectively increased, the contact area between the cold water and the high-temperature flue gas is increased, the heat exchange efficiency is further effectively improved, and the resource utilization rate is further improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the utility model as defined by the appended embodiments and equivalents thereof.
Claims (6)
1. The utility model provides a waste heat recovery's steam generator, includes bottom casing (101), top cap (102), combustor (104) and steam exit tube (103), its characterized in that: the bottom of bottom casing (101) is fixed with the connecting plate, be formed with the water cavity between connecting plate and the bottom casing (101) diapire, the top of bottom casing (101) is fixed with baffle (2), the top of baffle (2) is formed with steam and gathers chamber (201), the bottom of baffle (2) is formed with the heat transfer chamber, the combustion head of combustor (104) is located the top in heat transfer chamber, the connecting plate top is fixed with a plurality of heat exchange tubes (3), the bottom and the water cavity of heat exchange tube (3) are linked together, baffle (2) are extended at the top of heat exchange tube (3), be provided with circulation subassembly between steam and the water cavity, the fixed intercommunication in water cavity one side has inlet tube (6), be connected with waste heat recovery device (5) on the body of inlet tube (6).
2. A waste heat recovery steam generator as claimed in claim 1, wherein: the heat exchange tubes (3) are arranged in a plurality, and are distributed in an annular mode relative to the central axis of the combustion head of the combustor (104).
3. A waste heat recovery steam generator as claimed in claim 1, wherein: the circulation assembly comprises a circulation pipe (401) and a first water pump (402);
two ends of the circulating pipe (401) are respectively communicated with the steam collecting cavity (201) and the water cavity, and the first water pump (402) is connected with a pipe body of the circulating pipe (401).
4. A waste heat recovery steam generator according to claim 3, wherein: the waste heat recovery device (5) comprises a waste heat recovery box body, a plurality of guide plates (7), a smoke suction pipe (901), a smoke outlet pipe (902) and an air pump, wherein the guide plates (7) are fixed with the side wall of the waste heat recovery box body;
the adjacent guide plates (7) are distributed in a staggered way, and water circulation through grooves (701) are formed between the end surfaces of the opposite sides of the adjacent guide plates (7) and the waste heat recovery box body;
a heat exchange component is arranged between the smoke suction pipe (901) and the smoke outlet pipe (902);
the air pump is connected with a pipe body of the flue gas outlet pipe (902).
5. The heat recovery steam generator of claim 4, wherein: the heat exchange assembly comprises a plurality of flue gas flowing boxes (801) and connecting pipes (802) which are fixed with the side walls of the waste heat recovery box body;
the smoke flow box (801) at the top is fixedly communicated with the smoke suction pipe (901), and the smoke flow box (801) at the bottom is fixedly communicated with the smoke outlet pipe (902);
the connecting pipes (802) are fixedly communicated between two adjacent flue gas flow boxes (801) in a staggered mode.
6. The heat recovery steam generator of claim 4, wherein: the flue gas straw (901) is L-shaped, the top tube body of the flue gas straw is positioned at the top of the heat exchange cavity, and the end face of the top end of the flue gas straw is parallel to the bottom end of the partition board (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321153520.7U CN220471581U (en) | 2023-05-15 | 2023-05-15 | Waste heat recovery's steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321153520.7U CN220471581U (en) | 2023-05-15 | 2023-05-15 | Waste heat recovery's steam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220471581U true CN220471581U (en) | 2024-02-09 |
Family
ID=89796718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321153520.7U Active CN220471581U (en) | 2023-05-15 | 2023-05-15 | Waste heat recovery's steam generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220471581U (en) |
-
2023
- 2023-05-15 CN CN202321153520.7U patent/CN220471581U/en active Active
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